/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:00:52,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:00:52,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:00:52,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:00:52,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:00:52,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:00:52,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:00:52,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:00:52,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:00:52,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:00:52,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:00:52,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:00:52,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:00:52,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:00:52,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:00:52,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:00:52,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:00:52,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:00:52,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:00:52,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:00:52,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:00:52,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:00:52,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:00:52,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:00:52,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:00:52,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:00:52,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:00:52,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:00:52,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:00:52,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:00:52,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:00:52,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:00:52,146 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:00:52,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:00:52,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:00:52,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:00:52,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:00:52,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:00:52,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:00:52,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:00:52,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:00:52,148 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:00:52,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:00:52,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:00:52,149 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:00:52,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:00:52,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:00:52,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:52,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:00:52,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:00:52,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:00:52,151 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:00:52,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:00:52,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:00:52,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:00:52,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:00:52,483 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:00:52,484 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2020-07-07 13:00:52,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fc3740/ae2ff08529794a0ca947a91a79031bff/FLAGb85ade465 [2020-07-07 13:00:53,022 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:00:53,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2020-07-07 13:00:53,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fc3740/ae2ff08529794a0ca947a91a79031bff/FLAGb85ade465 [2020-07-07 13:00:53,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fc3740/ae2ff08529794a0ca947a91a79031bff [2020-07-07 13:00:53,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:00:53,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:00:53,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:53,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:00:53,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:00:53,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3992f9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53, skipping insertion in model container [2020-07-07 13:00:53,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:00:53,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:00:53,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:53,628 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:00:53,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:53,788 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:00:53,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53 WrapperNode [2020-07-07 13:00:53,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:53,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:00:53,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:00:53,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:00:53,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... [2020-07-07 13:00:53,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:00:53,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:00:53,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:00:53,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:00:53,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:00:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:00:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-07-07 13:00:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-07 13:00:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:00:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:00:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:00:54,412 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:00:54,413 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-07 13:00:54,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:54 BoogieIcfgContainer [2020-07-07 13:00:54,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:00:54,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:00:54,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:00:54,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:00:54,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:00:53" (1/3) ... [2020-07-07 13:00:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1e1aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:54, skipping insertion in model container [2020-07-07 13:00:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:53" (2/3) ... [2020-07-07 13:00:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1e1aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:54, skipping insertion in model container [2020-07-07 13:00:54,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:54" (3/3) ... [2020-07-07 13:00:54,426 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-07-07 13:00:54,436 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:00:54,444 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:00:54,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:00:54,475 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:00:54,476 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:00:54,476 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:00:54,476 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:00:54,476 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:00:54,476 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:00:54,477 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:00:54,477 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:00:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-07-07 13:00:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-07 13:00:54,506 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:54,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:00:54,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:54,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1852514461, now seen corresponding path program 1 times [2020-07-07 13:00:54,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:54,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321043791] [2020-07-07 13:00:54,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:00:54,741 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:54,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321043791] [2020-07-07 13:00:54,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:00:54,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:00:54,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199635454] [2020-07-07 13:00:54,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:00:54,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:00:54,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:00:54,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:00:54,770 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-07-07 13:00:55,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:00:55,118 INFO L93 Difference]: Finished difference Result 213 states and 258 transitions. [2020-07-07 13:00:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:00:55,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-07 13:00:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:00:55,132 INFO L225 Difference]: With dead ends: 213 [2020-07-07 13:00:55,132 INFO L226 Difference]: Without dead ends: 107 [2020-07-07 13:00:55,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:00:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-07 13:00:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-07 13:00:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-07 13:00:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-07-07 13:00:55,206 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 32 [2020-07-07 13:00:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:00:55,207 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-07-07 13:00:55,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:00:55,207 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-07-07 13:00:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:00:55,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:55,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:00:55,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:00:55,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:55,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:55,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1065550425, now seen corresponding path program 1 times [2020-07-07 13:00:55,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:55,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284781061] [2020-07-07 13:00:55,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:55,440 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:55,441 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:00:55,441 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:00:55,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:00:55,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:00:55 BoogieIcfgContainer [2020-07-07 13:00:55,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:00:55,488 INFO L168 Benchmark]: Toolchain (without parser) took 2095.19 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 104.4 MB in the beginning and 194.9 MB in the end (delta: -90.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:55,490 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:00:55,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.09 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 104.1 MB in the beginning and 180.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:55,494 INFO L168 Benchmark]: Boogie Preprocessor took 55.44 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:55,495 INFO L168 Benchmark]: RCFGBuilder took 572.79 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 149.6 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:55,496 INFO L168 Benchmark]: TraceAbstraction took 1064.59 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 149.6 MB in the beginning and 194.9 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:00:55,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.09 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 104.1 MB in the beginning and 180.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.44 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 572.79 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 149.6 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1064.59 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 149.6 MB in the beginning and 194.9 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L98] double x = -0.0; [L99] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND FALSE !(j0 < 20) [L47] COND TRUE j0 > 51 [L48] COND TRUE j0 == 0x400 [L49] return x + x; [L99] RET, EXPR floor_double(x) [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 19 SDslu, 97 SDs, 0 SdLazy, 137 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...